2018 GMC CANYON Engine And Engine Coolingexhaust System Problems

The contact owns a 2018 GMC Canyon. The contact stated while driving 60-65 MPH, the message “Bad Exhaust Fluid Warning” was displayed. The contact stated that he added exhaust fluid to the vehicle per owner manual’s instructions; however, the message remained displayed. The vehicle was taken to an unknown dealer, where the failure could not be duplicated. The dealer advised the contact that the vehicle would return to normal operation if he continued driving the vehicle. The contact stated that as he continued driving, the vehicle failed to exceed 55 MPH. A message indicating that the speed would decrease to 45 MPH for 40 miles, and then to 5 MPH, was displayed. The contact pulled into a gas station. The vehicle was towed to the residence. The vehicle was then driven to the dealer, where the failure could not be duplicated. The vehicle was not repaired. The manufacturer was not...